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20-
30-
50 seems to be common & helpful.
Mr DaFong may want to try all & record them for years, till you have an informed favorite
Mr DaFong;
i called up a big Chicago broker exec one time;
done business with them for years i raised my voice a bit, said your ''new quote improved'' unquote ,laugh out loud '' charts dont have a volume moving average.
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The big exec said i will take care of that;
he changed the Software within days , thank God & a good broker.